Section 4 TM    9-2320-363-20-1 TROUBLESHOOTING CHARTS E. CODE46. LOW BATTERY VOLTAGE (Cent’d.) STEP/SEQUENCE 464  Check  for  Bad  Battery + Line l Remove   both  M   fuses. l Read voltage at socket A of one fuse holder to a good ground. l Repeat voltage reading at the other   fuseholder. 46.5 Ground Check at the ECM l disconnect the 6-way power harness connector at the ECM (if you have not previously done so). l Read voltage on socket E of the 6-way power harness connector to socket D. l Also read voltage on socket A to socket C. 46-6  Check   E CM Connectors l Check terminals at the ECM 6-way power harness connector (both the ECM and harness side) for damage; bent, corroded and unseated pins or sockets. RESULT I WHAT TO DO NEXT Less than or The Battery + line near the equal to 11.5 volts on Battery is open, or a corroded either reading. connection exists at the Battery + terminal. Repair problem, page 4-256 .Then go to 46-30. G r e a t e r    t h a n    — 11.5 volts on both readings. -The Battery + line between the fuseholder and the ECM has an open, or the ECM power connector has a corroded connection.  Repair  problem page 4-256. Then go to 46-30. Less than or - The ground wire (ckt #150) is equal to 11.5 volts on open or has a corroded either reading. connection.  Repair  ground  wire, page 3-2. Then go to 46-30. Greater than ‘ Go to  46-6. 11.5 volts on both readings. Terminals and -Replace ECM, page 4-192. connectors are okay. Then go to 42-6. Problem  found. Repair terminals/connectors, page 3-2. Then go to 46-30. 3-303